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US3986118A - Simplified wheel speed transducer - Google Patents

Simplified wheel speed transducer Download PDF

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Publication number
US3986118A
US3986118A US05/574,154 US57415475A US3986118A US 3986118 A US3986118 A US 3986118A US 57415475 A US57415475 A US 57415475A US 3986118 A US3986118 A US 3986118A
Authority
US
United States
Prior art keywords
pole pieces
wheel speed
magnet
cores
speed transducer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US05/574,154
Other languages
English (en)
Inventor
Basil M. Madigan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lockheed Martin Tactical Systems Inc
Original Assignee
Goodyear Aerospace Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Goodyear Aerospace Corp filed Critical Goodyear Aerospace Corp
Priority to US05/574,154 priority Critical patent/US3986118A/en
Priority to CA248,553A priority patent/CA1048123A/en
Priority to GB11817/76A priority patent/GB1507292A/en
Priority to IT48783/76A priority patent/IT1057460B/it
Priority to JP51047598A priority patent/JPS5851222B2/ja
Priority to FR7612975A priority patent/FR2309869A1/fr
Priority to DE19762619857 priority patent/DE2619857A1/de
Application granted granted Critical
Publication of US3986118A publication Critical patent/US3986118A/en
Assigned to LORAL CORPORATION reassignment LORAL CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: GOODYEAR AEROSPACE CORPORATION
Assigned to MANUFACTURERS HANOVER TRUST COMPANY, AS AGENT reassignment MANUFACTURERS HANOVER TRUST COMPANY, AS AGENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AIRCRAFT BRAKING CORPORATION
Assigned to MANUFACTURERS HANOVER TRUST COMPANY, AS AGENT reassignment MANUFACTURERS HANOVER TRUST COMPANY, AS AGENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AIRCRAFT BRAKING CORPORATION, A CORP. OF DE
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/488—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable reluctance detectors

Definitions

  • Yet another object of this invention is to present a simplified wheel speed transducer which is simplistic in design, inexpensive to construct, reliable in operation, and adaptable for implementation with presently existing systems.
  • a wheel speed transducer for sensing the rotational speed of a wheel about an axle, comprising: a housing adaptable for being fixedly secured to the axle; two permanent magnets received within the housing; at least one elongated pole piece commonly abutting a first surface of each of said magnets, said surfaces being of like polarity; two inductive coils having fluxconductive cores axially passing therethrough, each magnet being abutted by a core on a second surface thereof, the second surface of said magnets being of like polarity with respect to each other and of opposite polarity with respect to the first surfaces; and two pole pieces, one connected to the end of each of the cores opposite the ends of the cores abutting the magnets.
  • FIG. 1 is a top plan view of the transducer of the invention.
  • FIG. 2 is a cross-sectional view of the transducer of FIG. 1 taken along the line 2--2.
  • the wheel speed transducers heretofore utilized in the art have most generally achieved compact packaging by providing a complex magnetic flux path between the active magnetic elements of the unit.
  • a single magnet is nested within the center of the transducer with pole pieces passing radially therefrom at the top and bottom thereof.
  • the pole pieces are orthogonal to each other thus dividing the unit into quadrants.
  • the north and south poles of such units are in different planes from each other, being separated by the magnet interposed therebetween.
  • the magnetic path between poles is not uniplanar, but indeed takes a path through the magnet interconnecting the two poles and perpendicular thereto, and further takes a path between the pole tips which is transverse to the planes of the poles.
  • the structure of the instant invention as shown in FIGS. 1 and 2 achieves an optimum utilization of magnetic energy with substantially reduced fringing from those units presently used.
  • the transducer unit of the invention has these desirable characteristics while maintaining a simplistic and compact unit design.
  • the transducer of the invention is designated generally by the numeral 10.
  • a housing 12 having a short lip 13 extending about the circumference thereof is provided for receiving the ferromagnetic elements of the unit.
  • Cores 18, 20 are of a good magnetic flux conducting character and would preferably be of a soft iron construction.
  • Permanent magnet disks 22, 24 are provided at facing ends of coils 14, 16 and in flux conducting relationship with the cores 18, 20.
  • the disk magnets 22, 24 are of such nature as to have their north and south poles on opposite flat surfaces thereof with similar poles of the two magnets facing each other with pole pieces 26, 28 being interposed therebetween.
  • the pole pieces 26, 28 take on the polarity of the similar faces of the magnets 22, 24 in contact therewith.
  • the pole pieces 30, 32 are respectively connected in flux conducting relationship with the cores 18, 20 which are in contacting relationship with the other faces of the magnets 22, 24.
  • the poles 26, 28 are of like polarity while the poles 30, 32 are of like polarity with respect to each other and opposite from the polarity of poles 26, 28.
  • the structure of the invention provides for magnetic flux paths between the north poles 30, 32 and south poles 26, 28 thereof. Portions of these paths are open, circumferentially surrounding the unit 10 through the quadrants defined by the pole pieces.
  • the closed portions of the paths are defined by the pole pieces.
  • the closed portions of the paths are defined by the pole pieces 26, 28 cores 18, 20, and pole pieces 30, 32.
  • An exciter ring 44 is positioned in close-spaced circumferential relationship with the unit 10.
  • the ring 44 of course, has a plurality of teeth thereon for varying the reluctance of the magnetic path between pole pieces as the paths exist exterior to the unit 10.
  • the utilization of such an exciter ring in combination with flux paths between pole pieces is well known in the art and not elaborated upon herein.
  • the rotation of the ring 44 is operative by virtue of varying the flux paths to induce current into the respective inductive coil assemblies 14, 16.
  • Such current is induced into the magnet wire 19 which is wrapped about the core of the respective coil assemblies 14, 16 in the normal spool-like fashion.
  • the assemblies 14, 16 are respectively provided with end plates 15, 17 and 21, 23.
  • the magnet wire 19 of the spool assemblies 14, 16 is continuous such that the ends thereof, one from the coil 14 and the other from the coil 16, are attached to the connector lugs 38 as shown in FIG. 2.
  • the alternating current signals induced into the coils by virtue of the excitation of the magnetic field by the rotating exciter ring 44 is thus evidenced at the connector lugs 38 for use by appropriate breaking circuitry.
  • a threaded connector 36 having the aforementioned lugs 38 protruding therefrom is provided in secured relationship to the housing 12.
  • This connector 36 is, of course, adaptable for interconnection with a mating connector for transfer of the induced signal to appropriate circuitry.
  • an epoxy 34 or other plastic filler is also applied to the unit of the invention to securedly maintain the various elements of the unit 10 in their proper position and to cause such elements to be impervious to the effects of the atmosphere or ambient operating conditions.
  • the structure of the invention as presented hereinabove provides for magnetic flux paths between the pole pieces and through the coil assembly cores which are uniplanar in nature and hence reduce the fringing effect heretofore encountered in the art.
  • Such uniplanar paths allow the unit, when compared with prior art units, to be made of smaller physical size since the unit is more efficient because more flux lines pass through the functional loop between the pole pieces due to the reduction in fringing.
  • the size of the magnets 22, 24 and the specific characteristics of the coils 14, 16 are selected for optimum operating condition with due consideration being given to physical size, since as is well known in the art, the shaping of the magnet, as to thickness and diameter, determines the point of operation along the demagnetization curve.
  • magnets of an aluminum nickle cobalt (alnico 8) composition may be utilized having such physical size as to operate on the optimum position along the demagnetization curve within the structure of the invention. Thus, the optimum energy available from the magnet is acquired.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
US05/574,154 1975-05-02 1975-05-02 Simplified wheel speed transducer Expired - Lifetime US3986118A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US05/574,154 US3986118A (en) 1975-05-02 1975-05-02 Simplified wheel speed transducer
CA248,553A CA1048123A (en) 1975-05-02 1976-03-23 Simplified wheel speed transducer
GB11817/76A GB1507292A (en) 1975-05-02 1976-03-24 Simplified wheel speed transducer
IT48783/76A IT1057460B (it) 1975-05-02 1976-03-30 Perfezionamento nei trasduttori per la determinazione della velocita di rotazione di ruote
JP51047598A JPS5851222B2 (ja) 1975-05-02 1976-04-26 車輪速度トランスジユ−サ
FR7612975A FR2309869A1 (fr) 1975-05-02 1976-04-30 Transducteur simplifie de vitesse de roue
DE19762619857 DE2619857A1 (de) 1975-05-02 1976-05-03 Vorrichtung zum erzeugen eines drehzahlproportionalen signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/574,154 US3986118A (en) 1975-05-02 1975-05-02 Simplified wheel speed transducer

Publications (1)

Publication Number Publication Date
US3986118A true US3986118A (en) 1976-10-12

Family

ID=24294901

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/574,154 Expired - Lifetime US3986118A (en) 1975-05-02 1975-05-02 Simplified wheel speed transducer

Country Status (7)

Country Link
US (1) US3986118A (it)
JP (1) JPS5851222B2 (it)
CA (1) CA1048123A (it)
DE (1) DE2619857A1 (it)
FR (1) FR2309869A1 (it)
GB (1) GB1507292A (it)
IT (1) IT1057460B (it)

Cited By (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4107601A (en) * 1977-01-21 1978-08-15 National Marine Service, Inc. Self-adjusting exciter band for shaft speed magnetic pickup
US4841243A (en) * 1985-04-01 1989-06-20 North American Philips Corp. Side-looking speed sensor
US5606254A (en) * 1995-10-19 1997-02-25 General Motors Corporation Rotation sensor employing coil wound on assembly of a core interposed between two magnets
EP2312180A2 (en) 2009-10-13 2011-04-20 Fox Factory, Inc. Methods and apparatus for controlling a fluid damper
EP2402626A2 (en) 2010-07-02 2012-01-04 Fox Factory, Inc. Bypass for a Suspension Damper
EP2410203A2 (en) 2010-07-22 2012-01-25 Fox Factory, Inc. Suspension Damper with Remotely-Operable Valve
EP2495472A2 (en) 2011-03-03 2012-09-05 Fox Factory, Inc. Cooler for a suspension damper
US9623716B2 (en) 2012-02-03 2017-04-18 Fox Factory, Inc. Suspension with hydraulic preload adjust
EP3290738A1 (en) 2016-08-25 2018-03-07 Fox Factory, Inc. Remotely operated bypass for a suspension damper
US10036443B2 (en) 2009-03-19 2018-07-31 Fox Factory, Inc. Methods and apparatus for suspension adjustment
EP3354928A1 (en) 2017-01-30 2018-08-01 Fox Factory, Inc. Twin tube shock with adjustable pressure regulation
US10040329B2 (en) 2009-01-07 2018-08-07 Fox Factory, Inc. Method and apparatus for an adjustable damper
US10047817B2 (en) 2009-01-07 2018-08-14 Fox Factory, Inc. Method and apparatus for an adjustable damper
US10060499B2 (en) 2009-01-07 2018-08-28 Fox Factory, Inc. Method and apparatus for an adjustable damper
US10072724B2 (en) 2008-08-25 2018-09-11 Fox Factory, Inc. Methods and apparatus for suspension lock out and signal generation
US10086670B2 (en) 2009-03-19 2018-10-02 Fox Factory, Inc. Methods and apparatus for suspension set up
US10094443B2 (en) 2009-01-07 2018-10-09 Fox Factory, Inc. Bypass for a suspension damper
EP3399209A1 (en) 2017-04-26 2018-11-07 Fox Factory, Inc. A multi-mode air shock
US10160511B2 (en) 2009-01-07 2018-12-25 Fox Factory, Inc. Method and apparatus for an adjustable damper
EP3461663A1 (en) 2017-09-29 2019-04-03 Fox Factory, Inc. Electronically controlled sway bar damping link
EP3461661A2 (en) 2017-09-29 2019-04-03 Fox Factory, Inc. Modular electronic damping control
US10330171B2 (en) 2012-05-10 2019-06-25 Fox Factory, Inc. Method and apparatus for an adjustable damper
EP3517801A1 (en) 2018-01-29 2019-07-31 Fox Factory, Inc. Twin tube shock with adjustable pressure regulation
US10443671B2 (en) 2009-01-07 2019-10-15 Fox Factory, Inc. Remotely operated bypass for a suspension damper
US10591015B2 (en) 2009-03-19 2020-03-17 Fox Factory, Inc. Methods and apparatus for suspension adjustment
EP3660349A1 (en) 2018-11-28 2020-06-03 Fox Factory, Inc. Active valve for an internal bypass
US10677309B2 (en) 2011-05-31 2020-06-09 Fox Factory, Inc. Methods and apparatus for position sensitive suspension damping
EP3663605A1 (en) 2018-10-30 2020-06-10 Fox Factory, Inc. Position sensitive suspension damping with an active valve
US10697514B2 (en) 2010-01-20 2020-06-30 Fox Factory, Inc. Remotely operated bypass for a suspension damper
US10731724B2 (en) 2009-10-13 2020-08-04 Fox Factory, Inc. Suspension system
US10737546B2 (en) 2016-04-08 2020-08-11 Fox Factory, Inc. Electronic compression and rebound control
US10821795B2 (en) 2009-01-07 2020-11-03 Fox Factory, Inc. Method and apparatus for an adjustable damper
WO2021041950A1 (en) 2019-08-29 2021-03-04 Fox Factory, Inc. Smart device application with customizable tunes for active valve control
US11021204B2 (en) 2008-11-25 2021-06-01 Fox Factory, Inc. Seat post
EP3828016A1 (en) 2019-11-26 2021-06-02 Fox Factory, Inc. Selecting different suspension tunes via a manually operated switch
EP3875800A1 (en) 2020-02-27 2021-09-08 Fox Factory, Inc. A shock assembly
EP3875801A1 (en) 2020-02-27 2021-09-08 Fox Factory, Inc. A shock assembly and method
EP3888957A1 (en) 2020-04-02 2021-10-06 Fox Factory, Inc. System for vehicle suspension management
EP3895966A1 (en) 2020-03-30 2021-10-20 Fox Factory, Inc. Integrated active valve assembly
EP3926204A1 (en) 2020-06-05 2021-12-22 Fox Factory, Inc. An electronic external bypass
EP3939812A1 (en) 2020-07-15 2022-01-19 Fox Factory, Inc. Rough road detection
US11279199B2 (en) 2012-01-25 2022-03-22 Fox Factory, Inc. Suspension damper with by-pass valves
US11299233B2 (en) 2009-01-07 2022-04-12 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11306798B2 (en) 2008-05-09 2022-04-19 Fox Factory, Inc. Position sensitive suspension damping with an active valve
EP3995717A1 (en) 2020-11-04 2022-05-11 Fox Factory, Inc. Self-contained airshock assembly
US11413924B2 (en) 2009-03-19 2022-08-16 Fox Factory, Inc. Methods and apparatus for selective spring pre-load adjustment
US11448283B2 (en) 2019-04-29 2022-09-20 Fox Factory, Inc. Main piston boost valve in a vehicle damper
US11459050B2 (en) 2019-09-03 2022-10-04 Fox Factory, Inc. Connected component platform
US11519477B2 (en) 2009-01-07 2022-12-06 Fox Factory, Inc. Compression isolator for a suspension damper
EP4125068A1 (en) 2021-07-29 2023-02-01 Fox Factory, Inc. Connected component platform
US11602971B2 (en) 2019-02-22 2023-03-14 Fox Factory, Inc. Mechanical bypass of electronic valve body
EP4147890A1 (en) 2021-09-14 2023-03-15 Fox Factory, Inc. Vehicle and wireless active suspension system
US11634003B2 (en) 2020-12-17 2023-04-25 Fox Factory, Inc. Automated control system for an electronically controlled sway bar link
EP4230448A1 (en) 2022-02-04 2023-08-23 Fox Factory, Inc. Limited range sharing of localized suspension setup information
EP4269137A1 (en) 2022-04-26 2023-11-01 Fox Factory, Inc. System and method
US11833876B2 (en) 2020-07-15 2023-12-05 Fox Factory, Inc. Rough road detection
US11866110B2 (en) 2010-07-02 2024-01-09 Fox Factory, Inc. Lever assembly for positive lock adjustable seat post
US12083850B2 (en) 2021-12-20 2024-09-10 Fox Factory, Inc. Electronically controlled sway bar damping link
US12110943B2 (en) 2019-10-15 2024-10-08 Fox Factory, Inc. Modular active valve system having a reduced footprint for use in a smaller shock platform
US12112579B2 (en) 2019-09-03 2024-10-08 Fox Factory, Inc. Connected component platform
US12122205B2 (en) 2009-01-07 2024-10-22 Fox Factory, Inc. Active valve for an internal bypass
US12227048B2 (en) 2023-08-07 2025-02-18 Fox Factory, Inc. Shock assembly with automatically adjustable ride height

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DE4412307A1 (de) * 1994-04-09 1995-10-19 Teves Metallwaren Alfred Fahrzeugrad mit Drehzahlmeßeinrichtung
US5856194A (en) 1996-09-19 1999-01-05 Abbott Laboratories Method for determination of item of interest in a sample
US5795784A (en) 1996-09-19 1998-08-18 Abbott Laboratories Method of performing a process for determining an item of interest in a sample

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US3604965A (en) * 1970-03-13 1971-09-14 Gen Motors Corp Double magnetic alternate path signal generator
US3678386A (en) * 1970-11-04 1972-07-18 Vapor Corp Apparatus for detecting motion and indicating speed
US3870911A (en) * 1972-06-21 1975-03-11 Nippon Denso Co Wheel speed detector for vehicles

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US3473120A (en) * 1967-01-03 1969-10-14 Goodyear Tire & Rubber Apparatus for detecting the rate of wheel acceleration or deceleration
US3604965A (en) * 1970-03-13 1971-09-14 Gen Motors Corp Double magnetic alternate path signal generator
US3678386A (en) * 1970-11-04 1972-07-18 Vapor Corp Apparatus for detecting motion and indicating speed
US3870911A (en) * 1972-06-21 1975-03-11 Nippon Denso Co Wheel speed detector for vehicles

Cited By (136)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4107601A (en) * 1977-01-21 1978-08-15 National Marine Service, Inc. Self-adjusting exciter band for shaft speed magnetic pickup
US4841243A (en) * 1985-04-01 1989-06-20 North American Philips Corp. Side-looking speed sensor
US5606254A (en) * 1995-10-19 1997-02-25 General Motors Corporation Rotation sensor employing coil wound on assembly of a core interposed between two magnets
US11306798B2 (en) 2008-05-09 2022-04-19 Fox Factory, Inc. Position sensitive suspension damping with an active valve
US10550909B2 (en) 2008-08-25 2020-02-04 Fox Factory, Inc. Methods and apparatus for suspension lock out and signal generation
US10072724B2 (en) 2008-08-25 2018-09-11 Fox Factory, Inc. Methods and apparatus for suspension lock out and signal generation
US11162555B2 (en) 2008-08-25 2021-11-02 Fox Factory, Inc. Methods and apparatus for suspension lock out and signal generation
US11021204B2 (en) 2008-11-25 2021-06-01 Fox Factory, Inc. Seat post
US11897571B2 (en) 2008-11-25 2024-02-13 Fox Factory, Inc. Seat post
US11794543B2 (en) 2009-01-07 2023-10-24 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11173765B2 (en) 2009-01-07 2021-11-16 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11499601B2 (en) 2009-01-07 2022-11-15 Fox Factory, Inc. Remotely operated bypass for a suspension damper
US10040329B2 (en) 2009-01-07 2018-08-07 Fox Factory, Inc. Method and apparatus for an adjustable damper
US10047817B2 (en) 2009-01-07 2018-08-14 Fox Factory, Inc. Method and apparatus for an adjustable damper
US10060499B2 (en) 2009-01-07 2018-08-28 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11549565B2 (en) 2009-01-07 2023-01-10 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11976706B2 (en) 2009-01-07 2024-05-07 Fox Factory, Inc. Remotely operated bypass for a suspension damper
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US11408482B2 (en) 2009-01-07 2022-08-09 Fox Factory, Inc. Bypass for a suspension damper
US10160511B2 (en) 2009-01-07 2018-12-25 Fox Factory, Inc. Method and apparatus for an adjustable damper
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US11866120B2 (en) 2009-01-07 2024-01-09 Fox Factory, Inc. Method and apparatus for an adjustable damper
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US11519477B2 (en) 2009-01-07 2022-12-06 Fox Factory, Inc. Compression isolator for a suspension damper
US10336148B2 (en) 2009-01-07 2019-07-02 Fox Factory, Inc. Method and apparatus for an adjustable damper
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US10443671B2 (en) 2009-01-07 2019-10-15 Fox Factory, Inc. Remotely operated bypass for a suspension damper
US10781879B2 (en) 2009-01-07 2020-09-22 Fox Factory, Inc. Bypass for a suspension damper
US12122205B2 (en) 2009-01-07 2024-10-22 Fox Factory, Inc. Active valve for an internal bypass
US12044286B2 (en) 2009-01-07 2024-07-23 Fox Factory, Inc. Compression isolator for a suspension damper
US12134293B2 (en) 2009-01-07 2024-11-05 Fox Factory, Inc. Method and apparatus for an adjustable damper
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US10821795B2 (en) 2009-01-07 2020-11-03 Fox Factory, Inc. Method and apparatus for an adjustable damper
US10814689B2 (en) 2009-01-07 2020-10-27 Fox Factory, Inc. Method and apparatus for an adjustable damper
US10807433B2 (en) 2009-01-07 2020-10-20 Fox Factory, Inc. Method and apparatus for an adjustable damper
US10723409B2 (en) 2009-01-07 2020-07-28 Fox Factory, Inc. Method and apparatus for an adjustable damper
US10800220B2 (en) 2009-01-07 2020-10-13 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11413924B2 (en) 2009-03-19 2022-08-16 Fox Factory, Inc. Methods and apparatus for selective spring pre-load adjustment
US12163569B2 (en) 2009-03-19 2024-12-10 Fox Factory, Inc. Methods and apparatus for suspension adjustment
US10086670B2 (en) 2009-03-19 2018-10-02 Fox Factory, Inc. Methods and apparatus for suspension set up
US11619278B2 (en) 2009-03-19 2023-04-04 Fox Factory, Inc. Methods and apparatus for suspension adjustment
US11920655B2 (en) 2009-03-19 2024-03-05 Fox Factory, Inc. Methods and apparatus for suspension adjustment
US10036443B2 (en) 2009-03-19 2018-07-31 Fox Factory, Inc. Methods and apparatus for suspension adjustment
US11655873B2 (en) 2009-03-19 2023-05-23 Fox Factory, Inc. Methods and apparatus for suspension adjustment
US12103349B2 (en) 2009-03-19 2024-10-01 Fox Factory, Inc. Methods and apparatus for selective spring pre-load adjustment
US10591015B2 (en) 2009-03-19 2020-03-17 Fox Factory, Inc. Methods and apparatus for suspension adjustment
US11279198B2 (en) 2009-10-13 2022-03-22 Fox Factory, Inc. Methods and apparatus for controlling a fluid damper
US10731724B2 (en) 2009-10-13 2020-08-04 Fox Factory, Inc. Suspension system
US10406883B2 (en) 2009-10-13 2019-09-10 Fox Factory, Inc. Methods and apparatus for controlling a fluid damper
EP2312180A2 (en) 2009-10-13 2011-04-20 Fox Factory, Inc. Methods and apparatus for controlling a fluid damper
US11859690B2 (en) 2009-10-13 2024-01-02 Fox Factory, Inc. Suspension system
US12005755B2 (en) 2009-10-13 2024-06-11 Fox Factory, Inc. Methods and apparatus for controlling a fluid damper
US11708878B2 (en) 2010-01-20 2023-07-25 Fox Factory, Inc. Remotely operated bypass for a suspension damper
US10697514B2 (en) 2010-01-20 2020-06-30 Fox Factory, Inc. Remotely operated bypass for a suspension damper
EP2402626A2 (en) 2010-07-02 2012-01-04 Fox Factory, Inc. Bypass for a Suspension Damper
US11866110B2 (en) 2010-07-02 2024-01-09 Fox Factory, Inc. Lever assembly for positive lock adjustable seat post
EP2410203A2 (en) 2010-07-22 2012-01-25 Fox Factory, Inc. Suspension Damper with Remotely-Operable Valve
EP2495472A2 (en) 2011-03-03 2012-09-05 Fox Factory, Inc. Cooler for a suspension damper
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Also Published As

Publication number Publication date
FR2309869B1 (it) 1979-06-22
IT1057460B (it) 1982-03-10
JPS51134669A (en) 1976-11-22
JPS5851222B2 (ja) 1983-11-15
CA1048123A (en) 1979-02-06
DE2619857A1 (de) 1976-11-04
FR2309869A1 (fr) 1976-11-26
GB1507292A (en) 1978-04-12

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